Looking For A School

My family is moving to France this summer. We expect to be living somwhere in the Plaisir/St. Germain en Laye/Versailles triangle. Looking for international schools for my son grade 9 and my daughter first year university. Lycee International is full in both the American and British sections. The International School of Paris has space if you are willing to pay 20,000 euros per year. Also looking at Ecole Actif Jeannine Manuel in the 6th arrondisement. My problem is coming up with additional universities for my daughter. She speaks French but her first language is English and prefers to study in English. She wants to do a Bachelor in Liberal Arts etc... The American University of Paris is an option but again, it will cost 20,000 euros per year.Any suggestions?? Thanks Brad